Which of the following is listed as another anaerobic exercise?

• A. Running
• B. Cycling
• C. Swimming
• D. Jump Rope

Answer: (C)

The idea being tested is how energy systems determine whether an activity is aerobic or anaerobic. High‑intensity, short‑duration efforts rely on anaerobic energy pathways that don’t require oxygen to produce quick bursts of power. In swimming, when you push for a sprint or swim a short all‑out set, the muscles must generate energy rapidly from the ATP‑PC system and fast glycolysis. This rapid demand outpaces the body’s ability to deliver oxygen, so the effort is categorized as anaerobic. Longer, lower‑intensity swims, by contrast, use oxygen and become aerobic. So, in this context, swimming is listed as an anaerobic exercise because it can be performed in brief, intense bursts that rely on anaerobic energy systems.